<!DOCTYPE html>
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<script src="./resources/common.js"></script>
<title> 'focus-without-user-activation' Policy : Correctly block automatic focus when policy disabled
</title>
<body>
<script>
  "use strict"
  // Note: According to html spec: https://html.spec.whatwg.org/#attr-fe-autofocus,
  // topDocument's autofocus processed flag initially is false and is set to true
  // after flushing autofocus candidates, i.e. flush of autofocus candidates
  // only happens once per page load.
  // In order to test the behaviour with both focus-without-user-activation on and off:
  // two test files are necessary:
  // - focus-without-user-activation-disabled-tentative.html
  // - focus-without-user-activation-enabled-tentative.sub.html

  // Cross origin subframe should not be able to use autofocus to steal focus
  // from main frame by default. However, with focus-without-user-activation
  // enabled for subframe, subframe should be able to autofocus.
  const url = "http://{{hosts[alt][www1]}}:{{ports[http][0]}}/permissions-policy/experimental-features/resources/focus-without-user-activation-iframe-tentative.html";

  function subframe_focused(subframe, event_name, timeout) {
    return new Promise(resolve => {
      window.onmessage = m => resolve(m.data.focused);
      subframe.contentWindow.postMessage({
        event: event_name,
        timeout: timeout
      }, "*");
    });
  }

  promise_test( async (instance) => {
    const frame = createIframe(document.body, {
      sandbox: "allow-scripts allow-same-origin",
      allow: "focus-without-user-activation *",
      src: url
    });

    await wait_for_load(frame);
    assert_true(await subframe_focused(frame, "autofocus"), "'autofocus' should work.");
    window.focus(); // Reset focus state in subframe.
    assert_true(await subframe_focused(frame, "focus-input"), "'element.focus' should work.");
    window.focus(); // Reset focus state in subframe.
    assert_true(await subframe_focused(frame, "focus-window"), "'window.focus' should work.");
    window.focus(); // Reset focus state in subframe.
  }, "When the policy is enabled, 'autofocus' and scripted focus do focus " +
     "the document.");
</script>
</body>
